GM Brushless
#2251
Has anybody had much success using an lrp x12 13.5t with this controller?
Tried it once before but just got massive motor fade and heat problems. Any suggestions apart from the "how to" on what ratio and timing to start with. Running on a tight indoor track (10m X 25m), carpet with quite a bit of grip.
Tried it once before but just got massive motor fade and heat problems. Any suggestions apart from the "how to" on what ratio and timing to start with. Running on a tight indoor track (10m X 25m), carpet with quite a bit of grip.
#2252
Tech Adept
I've got the 4 dot insert in the can which is -10 degrees but i'm guessing its still got at least 30 degrees of timing on it!
What amount of timing have you used with what turn?
What amount of timing have you used with what turn?
#2253
Tech Regular
Hi,
what should I have 'Voltage Cut off' set too ? It was at 250 but I can feel the power going after 3mins. I heard this needs to be dropped down to 5.5 ? but I've not tried it yet.
Thanks.
what should I have 'Voltage Cut off' set too ? It was at 250 but I can feel the power going after 3mins. I heard this needs to be dropped down to 5.5 ? but I've not tried it yet.
Thanks.
#2254
Tech Addict
yep, set it at 5.5v, value 78.
#2255
I have no ideia for the 13.5T motor, but i would start at 15º or less and test from there.
Don't forget to adjust gearing when you change the timming
#2256
Tech Regular
#2257
Tech Adept
Had a graupner 6564 gone into sensorless mode over the weekend. Anything I can do???
It is definitely the motor as I tried with another motor, a GM 97303, and it was fine, so the esc is ok.
Temperature was not more than 65 degrees celsius. No burnt smell and externally the motor looks fine.
It is definitely the motor as I tried with another motor, a GM 97303, and it was fine, so the esc is ok.
Temperature was not more than 65 degrees celsius. No burnt smell and externally the motor looks fine.
#2258
Had a graupner 6564 gone into sensorless mode over the weekend. Anything I can do???
It is definitely the motor as I tried with another motor, a GM 97303, and it was fine, so the esc is ok.
Temperature was not more than 65 degrees celsius. No burnt smell and externally the motor looks fine.
It is definitely the motor as I tried with another motor, a GM 97303, and it was fine, so the esc is ok.
Temperature was not more than 65 degrees celsius. No burnt smell and externally the motor looks fine.
#2259
resolder the 6 solder points on the sensor pcb where the sensor wire connects to. the sensor pcb is usually very badly soldered, also resolder all the windings
#2260
Tech Addict
Martin,
Can you tell me which fan do you use on your stock car
Can you tell me which fan do you use on your stock car
#2261
Tech Adept
Have tried that, still went sensorless. I tried the same sensor cable with another motor and it was ok. So that eliminates the esc and sensor cable. Definitely the motor.
Will give what Martin recommended a try.
Will give what Martin recommended a try.
Last edited by chinaman; 01-19-2011 at 05:29 AM.
#2262
Hi guys, im looking for a gm 120 2010, where i can buy cheap?
#2263
I got two from CMC Versand in January 2010. Excellent price.
Super fast for stock. Super smooth. And Mod. Including Deltas. Spare speedo still in the box unused a year later
Super fast for stock. Super smooth. And Mod. Including Deltas. Spare speedo still in the box unused a year later
#2264
#2265
Tech Addict
Thanks Martin.
Here are my pictures:
Here are my pictures: